Every gadget on the market today is going touch-screen, and HP's Touchsmart PC, developed together with Microsoft’s Vista, does just that with a light-detection interface.

The touch UI centers around lifestyle applications like email, multimedia, and photo browsing. The screen is flushed with a beam of light, and touching the screen breaks this plane of light beam, and hence allows the computer to recognize what you have selected.

Specifications wise, HP’s Touchsmart PC houses a 500GB HDD, 2.16Ghz Intel Core 2 Duo Processor, 4GB RAM, and NVIDIA GeForce 9300 graphics card.

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